Cutting apparatus



Feb. 7, 1961 Filed Aug. 1, 1956 FIG. .1-

R. N. EICHORN EI'AL 2,970,785

CUTTING APPARATUS 7 Sheets-Sheet 1 INVENTOR.

ROBERT N. EICHORN- y HENRY A. HENDRICH ATTORNEY Feb.7,1961 NEICHORN A2,970,785

CUTTING APPARATUS Filed Aug. 1, 1956 Illlllllld IIIIM/ i: Q

i (I) a.

$1" 7 Ill '7 Sheets-Sheet 2 w ININIW 1 Feb. 7, 1961 7 Sheets-Sheet 3Filed Aug. 1, 1956 1961 R. N. EICHORN ETAL I 2,970,785

CUTTING APPARATUS 7 Sheets-Sheet 4 Filed Aug. 1, 1956 ,1 R. N. EICHORNETAL 2,970,785

CUTTING APPARATUS I Filed Aug. 1, 1956 V 7 Sheets-Sheet 5 Feb- 7 R. N.EICHORN ETAL CUTTING APPARATUS Filed Aug. 1, 1956 FIG". 8 cl.

'7 Sheets-Sheet s 1951 R. N. EICHORN ETAL 2,970,785

CUTTING APPARATUS Filed Aug. 1, 1956 7 Sheets-Sheet '7 FIG-.8b-

United States Patent O CUTTING APPARATUS York Filed Augrl, 1956, Ser.No. 601,564

15 Claims. (Cl. 242--56.6)

This invention relates to apparatus for cutting and coiling slit paperwebs and more particularly to apparatus for cutting transverselylongitudinally slit paper webs and coiling the several webs therebycreated.

Machines for slitting a web of paper longitudinally into a plurality ofwebs are of numerous designs and are quite old in the art. However,devices for rewinding or coiling of the slit webs have been limited intheir ability to automatically start each individual slit web ontoseparate reel cores mounted side by side on a mandrel.

An object of this invention is to cut transversely a web of paper havinga plurality of longitudinally spaced slits, thereby creating a pluralityof paper webs.

Another object of this invention is to automatically start a pluralityof paper webs to wind onto separate reel cores.

A further object of this invention is to overdrive a plurality of paperwebs onto separate reel cores to form convolutions tightly around saidreel cores.

Other objects of the invention will be pointed out in the followingdescription and claims and illustrated in theaccompanying drawings,which disclose, by way of example, the principle of the invention andthe best mode, which has been contemplated, of applying that principle.

In the drawings:

Fig. l is a schematic end elevation view of the apparatus embodying theinvention attached to a slitting machine.

Fig. 2 is a schematic front elevation view of the apparatus embodyingthe invention attached to a slitting machine with portions of the frontcover plate broken away.

Fig. 3 is a left end elevation of the carriage unit with the side coverplate removed and portions of the pinion confining plates and driveroller broken away.

Fig. 4 is an exploded isometric view of the mechanism for driving theresilient rollers.

Fig. 5 is a detail view of the latch member for holding the carriage ina locked position.

Fig. 6 is a partial plan view of the knife guard retracting mechanismviewed from underneath the top cover plate.

Fig. 7 is an isolated end elevation view of the drive roller and tensionreturn spring.

Fig, 8a is a diagrammatic view of the carriage unit in a position aheadof the proper position for transversely cutting a slit web. In thisposition the web is out prior to the carriage reaching the end of itstravel.

Fig. 8b is a diagrammatic view of the carriage unit in the properposition for cutting a web transverselyat the time the carriage reachesthe end of its travel.

Fig. 8c is a diagrammatic view of the carriage unit in Fig. 6 ofmounting for cam follower and link assembly.

Patented Feb. 7, 1961 ice A machine for slitting a web of paperlongitudinally into a plurality of paper webs is generally designated bythe reference numeral 1. An apparatus for cutting transversely thelongitudinally slit paper Web andcoiling the several paper webs createdonto individual reel cores is generally designated by the referencenumeral 2 (Figs. 1 and 2).

Referring to Figs. 1 and 2, the web 3 is fed from a supply roll 4controlled by a power source such as an electric motor 5 through asuitable pulley or gear drive arrangement and around a series of rollers6 which insures proper feeding of the web. As the web passes over aroller 7, it passes between a series of longitudinally spaced rotaryslitters 8 and rotary knives 9 which cooperate with each other to slitthe web 3 into predetermined widths. The slitters 8 are movable into aposition for slitting from a nonoperative or neutral position by meansof a series of handles 10.

The web 3 continues past the slitters 8 and knives 9 and partiallyaround a drive roller 11 which coacts with rollers 12 and 13 to wind theslit web around a plurality of reel cores 14.

In order to wind the slit web around the reel cores 14, it is necessaryto start the web 3 in some manner to wrap around the cores. Severalmethods not within the scope of the invention are available to performthis operation. One method would be to tape the web onto the reel cores,while another method would be to groove the reel cores transversely andtuck the web into the groove. Aside from the fact that these methods arelaborious, they would not be suitable where it is desired toautomatically splice one end of a reel of webbing onto another, sincethe ends of the webbing on-the re'el cores would require treatment toprepare them for splicing such as removal of the tape or trimming ofthat portion of webbing creased by tucking it into the groove of thereel cores. Either of the methods is adapted to start the webbing towrap around the reel cores with the slits extending close to the edge ofthe web, leaving the several webs connected or extending through theedge leaving the several webs disconnected.

The apparatus designated by the reference numeral 2 (Fig. 2) is attachedto the slitting machine 1 by two sets of U bolts 15 which clamp around abar 16 supporting the slitter assembly and are attached by lock nuts 17or other suitable fastening means to angle irons 18 carried on each endof the apparatus 2. The angle iron plates 18 are fastened by bolts andnuts (not shown) to support bars 19 which are rigidly attached toirregularly shaped plates 20 supporting longitudinally spaced fixedparallel racks 21. The racks 21 are adapted to support and carry acarriage unit 22 therebetween. The carriage unit 22 being movable on theracks 21 toward and away from the machine 1, has a top cover. plate 23,a front plate 24, a pair of side plates 25 and a pair of end covers 26.On each end of the carriage unit (Figs. 1 and 3) there is a pinion gear27 fixedly mounted on a rotatable shaft 28 journaled in the side plates25 and adapted to engage the racks 21. A pair of plates 29 fixed to eachside of the racks 21 confines the pinions 27 as they move along theracks.

The carriage unit 22 is supported by the racks 21 and 'by a pair ofrollers 30 rotatably mounted on parallel "shafts 3-1 fixed to an angularbracket 32 attached to the top cover plate 23 of the carriage unit. Therollers 30 maintain the pinions 2'7 engaged with the racks 21 andprevent oscillatory movement of the carriage 22. The carriage unit 22 isnormally held away from the machine 1 by a carriage return spring 33(Fig. 6). The carriage return spring 33 is a torsion spring which fitsover the shaft 28 and is attached on one end to the sleeve 34 of thepinion gear 27 and on the other end to a bracket A knife 36 for cuttingthe web transversely is supported by the top cover plate 23 and isattached thereto by means of a plurality of screws 37 or other suitablefastening means and is disposed to extend outwardly from the carriagetoward the machine 1. The knife 36 consists of a series of V-shapedteeth'curved upwardly to give good angle of penetration into the web andto prevent the teeth from striking the reel cores 14. A retractibleguard 38 lies over the knife for protection of the machine operator aswell as providing a rounded edge to facilitate pulling the webbing tautprior to moving the carriage unit 22 toward the machine 1. The knifeguard 38 cannot be retracted unless the carriage is moved toward themachine 1 since the mechanism for retracting the knife guard which is tobe described hereinafter is designed to prevent it from doing so.

The mechanism for retracting the knife guard 38 comprises a cam means39' carried by the shaft 28 and capable of being rotated by the shaft28, a cam follower 40 connected to a link 41 and disposed to follow acam 42, and other linkage 43 connected to the link 41 and knife guard38. The linkage 43 is constructed to lie slightly over center of thepivot points 48a and 54a when the carriage unit is furthest away fromthe machine 1 so that the knife guard cannot be retracted by pushingagainst it. As the carriage unit is moved toward the machine 1, the cam42 being rotated by the shaft 28 pivots the cam follower 40 about itscenter of support 46. The linkage 43 which is moved as the cam follower40 is pivoted passes from over center to and through center andcontinues to move away from center thereby retracting the knife guard33. However, retraction of the knife guard 38 does not take place untilthe carriage unit is very close to the end of its travel.

The cam means 39* consists of a bushing 44 fixed to the shaft 28. Thebushing 44 has a threaded male portion adapted to screw into thethreaded female portion of a bushing 45 journaled on said shaft 28 andlocated thereon to receive the male member. The end of the bushing 45opposite the female portion has the cam surface 42 with quite a sharprise. The sharp rise of v the cam surface 4-2 bears against the camfollower 49 to hold the bushing 45 while the male portion is screwinginto the female portion and then when the connection between the maleportion and female portion is tight, the cam surface 42 is compelled torotate as the carriage continues forward.

The cam follower 4ft disposed to follow the cam surface 42 is rigidlyattached to the link 41, thereby becoming integral therewith. The link41 and cam follower 40 are pivotally mounted on a pin 4r, fixed to thetop cover plate 23 and extending downward into a bracket 47 attached tothe front cover plate 22 of the carriage unit. The other end of the link4-1 is pivotally mounted on a pin 4-8 fixed to a link 49 intermediate ofits ends. The link 49 adapted to move laterally is normally restrainedby a spring 50 attached on one end to a pin 51 fixedly depending fromthe top cover plate 23 and on its other end to the link 43; hence thecam follower 4% is caused to follow the cam surface 42 by action of thespring 50 through the links 41 and 49'.

Another link 32 pivotally mounted on one end to a pin 53 fixed to theknife guard is also pivotally mounted on its other end to the pin 48. ApinSd fixed to the other end of the link 49 pivotally carries a link 55and a link 56. The other end of link $6 is pivotally mounted on a pin 57fixed to the top cover plate while the other end of the link 55 ispivotally mounted on a pin 58 fixed -to the knife guard. The knife guard38 is provided with a plurality of slots 59 suitably spaced from eachother along its length. The slots 59 guide the movement of the knifeguard by following-the pins -69 fixed to the top 4 a cover plate. Thetop cover plate 23 is provided with slots 61 to permit movement of thepins 53 and 58.

The male portion of the bushing 44 screws into the female portion ofbushing 45 until a tight connection is made. As the cam surface 42rotates, it causes the cam follower 40 and link 41 to pivot around thepin 46. As the link 41 pivots, it carries the link 49 laterally againstthe tension of the spring 50. The lateral movement of the link 49 causesthe link 52 and the link 55 to pivot and to move longitudinally, thusretracting the guard. When the carriage returns to its starting positionby action of the carriage return spring 33, the knife guard 38 is movedback into position to cover the knife 36 by action of the linkage 43moved by the spring 59 in cooperation with the cam means 3-9. The cammeans 39 is rotated by the shaft 28 inasmuch as the connection betweenthe bushings 44 and 45 is still tight; however, a shoulder 62 on thebushing 45 strikes the top cover plate 23 (on the return but not on theforward movement of the carriage unit since the carriage reaches the endof its forward travel before the shoulder 62 strikes the cover plate23), therefore breaking the tight connection between the bushings andholding the bushing 45 stationary as the male portion of the bushing 44screws out.

The web of paper 3 is cut by the knife teeth first penetrating the paperby piercing it and then continuing to penetrate the paper to shear it.The cutting action takes place when the paper web 3 is tautly wrappingaround the reel cores 14 and the web 3 is held securely on the top coverplate 23 and over the knife edge 36. Hence, the place where cuttingoccurs depends upon two factors, one being the position of the carriage22 from the machine 1 at the start of its travel and the other being theamount of webbing (Figs. 8a, 8b and from the bottom of the reel cores 14to the carriage. However, if the webbing is pulled tautly over the topcover plate 23 before the carriage unit 22 begins its travel, thevariable factor of the amount of webbing from the reel cores 14 to thecarriage unit 22 is eliminated, since that distance will then always beequal to the distance that the carriage 22 is from the machine 1.

The racks 21 are fixed with respect to the machine 1 so that when thecarriage 22 reaches the end of its travel on the racks, the knife blade36 will lie very near the nip point or the point of contact between theroller 11 and the reel cores 14. Hence, the best place for cutting tooccur would be at the time the carriage is at the end of its travel,since then the paper webs would be close to the nip point. If thedistance of the carriage from the machine is such that the carriagereaches the end of its travel before the web wraps tautly around theperiphery of the reel cores, the web will not be cut. Moreover, if thedistance of the carriage from the machine 1 is such that the carriagedoes not reach the end of its travel at the time the web wraps tautlyaround the periphery of the reel cores, the web will be out prior to thecarriage reaching the end of its travel. Accordingly, the distance ofthe carriage 22 from the machine 1 at the start of its travel should besuch that the carriage reaches the end of its travel at the time the webwraps tautly around the periphery of the reel cores 14. The movement ofthe carriage unit 22 away from the machine 1 is limited by a stop 63(Fig. 1), while movement of the carriage toward machine 1 is limited bya rubber drive wheel 64 carried by the carriage unit contacting theroller 11.

4) "has aplurality-of soft rubber rollers 67 loosely ljournaled thereon.There is a separate rubber roller to correspond to each individual reelcore. However, it would be possible to have a single rubber roller inplace of the several rubber rollers without departing from the spirit ofthe invention. Since it is possible that the slack of each slit web mayvary, it is desirable to have individual rollers to drive the webs. Therubber rollers 67 are disposed to hold the Webs against the reel cores14 when the carriage unit 22 has reached the end of its travel and uponreceiving power. through a drive train 68 (Figs. 3 and 4) from theroller 11, drive the webs into the nip point. The rubber wheel 64rotatably mounted on a shaft 69 fixed to a plate 70 attached to the endplate 25 is disposed to come into contact with the roller 11 when thecarriage 22 is at the end of its travel on the racks 21.

A gear 71 also rotatably mounted on the shaft 69 is drivably connectedto the wheel 64 by a pawl 72 pivotally mounted on a pin 73 fixed in saidwheel. In Fig. 7 a spring 74, connected on one end to a stud pin 75fixed to the wheel 64 and on its other end to a pin 76 attached to anarm 77 fixed to the pin 73 or integral therewith urges the pawl 72 (Fig.4) into engagement with the gear 71. The gear 71 meshes with a smallergear 78 rotatably mounted on a pin 79 fixed to a strap 80 adjustablyconnected to the side plate 25. The gear 78 meshes with a still smallergear 81 rotatably mounted on a pin 82 fixed to a plate 83 and passingthrough the side plate 25. The gear 81 is integral with or attached to alarger concentrically mounted gear 84 which meshes with a small gear 85fixed to the shaft 65. The shaft 65 journaled on one end in the plate 83extends the length of the carriage unit 22 and is journaled on its otherend in a plate identical to the plate 83. The plate 83 has an arcuateslot 86 to permit adjustment of the rollers 67 with respect to the reelcores 14. A bolt 87, passing through the arcuate slot 86, supports theplate 83 to the side plate 25. A cut-out portion 88 in the side plate 25permits easy removal of shaft 65 with attendant mountings. An identicalwheel, gear train and support plates are found on the other side of thecarriage unt.

As the carriage unit 22 reaches the end of its travel on the racks 21,it is held from returning to its starting position by a latch 89 (Figs.3 and 5). The latch 89 is pivotally mounted on a pin 90 fixed inthesides of a U-shaped bracket 91 which is secured to the top cover plate23. A compression spring 92 positioned between the latch 89 and the topcover plate 23 urges the latch upwardly against the rack 21. However,normally the shoulder portion 93 of the latch rides along the rack teethas the carriage moves, but when the carriage reaches the end of itstravel, a recessed portion 94 provided in the rack 21 permits theshoulder 93 to come into engagement therewith. Accordingly, with thespring 92 holding the shoulder 93 of the latch in the recess 94 and thecarriage return spring 33 holding the latch 89 against the shoulder ofthe recess 94, the carriage unit 22 is held in a locked position. Thecarriage unit 22 is released from its locked position by a stud pin 95(Fig. 4) fixed to the inner face of the wheel 64 and adapted to engagean ear 96 of a knock-off lever 97 (Fig. 3) which cams the latch 89 outof engagement with the rack 21. The knock-oft lever 97 is pivotallymounted on a pin 98 fixed to the rack 21 and is normally held against astop pin 99 fixed to the rack by a spring 168. The spring 180 isattached on one end to a projecting arm 181 of the lever 97 and on itsother end to a pin 102 fixed to the rack. The stud pin 95 engages theear 96 of the knock-off lever 97 to pivot it about the pin 98. The camsurface 103 on the knockofi lever 97 adapted to bear against theprojectingarm 104 of the lock arm 89 moves the lock arm 89 about the pin90 against the pressure of the spring 92 as the knock-off lever 97pivots, thereby releasing the lock arm 89 from the rack 21 and allowingthe carriage return spring 33 to return the carriage unit 22 to itsinitial position against the stop 63.

To start the slitting operation, the paper web 3 is threaded from thesupply roll 4 about the rollers 6 and then over the roller 7 down pastthe slitters 8 and knives 9, past the roller 11, between the roller 11and reel cores 14, around the reel cores 14 and up over the top coverplate 23.

The slitters 8 are then engaged with the knives 9 by means of thehandles 10 to slit the web 3 and the power is supplied to slowly feedthe web 3 through the machine 1. The roller 11, the roller 12 and theroller 13 frictionally drive the reel cores 14. The web 3 is fed throughthe machine 1 until the start of the slit is in register with orslightly past the leading edge of the knife guard 38. Since the severalwebs created wind on the individual reel cores without interwinding,there is no objection to cut the slit webbing so that the several websare disconnected from each other; however, it would be within the spiritof the invention to leave the several webs connected at their ends.

After the slits are in register with the leading edge of the knife guard38, the machine 1 is stopped. The machaine operator, then pulling thewebbing 3 tautly over the top cover plate and holding the web 3 securelythereon, pushes the carriage unit 22 toward the machine 1 to the lockedposition. During thisoperation, the knife guard 38 retracts and theknife 36 cuts the paper web transversely, thereby creating a pluralityof webs in the manner explained above. From Fig. 8a it can besee'n thatif the cutting action occurred before the carriage 22 reaches the end ofits travel, it is possible that the paper webs would be too short to beheld against the periphery of the reel cores by the soft rubber rollers67 and consequently they would not be fed into the nip point.

The soft rubber rollers 67 actually may be compressed -as they hold thewebs 3 against the reel cores 14. The

degree of pressure that they exert is adjustable by loosening the bolt87 and moving the plate 83. The rubber rollers 67 are loosely mounted onthe shaft 65 so that any slippage which would occur takes place betweenthe rub ber rollers 67 and the shaft 65, whereas if the rubber rollerswere rigidly mounted on the shaft any slippage occurring would bebetween the rubber rollers and the paper winding around the reel cores.and this action would damage the rubber rollers quite quickly.

The web 3 has been severed and the soft rubber rollers 67 are holdingthe several webs 3 against individual reel cores 14. The machineoperator now turns on the power to start the machine 1. The wheel 64being incontact with the roller 11 is frictionally driven by the roller11 to drive the soft rubber rollers 67 through the gear train 68. Therollers 67 are in fact overdriven so that any slack occurring will betaken up as the webs are fed into the nip point. The wheel 64 turnsthrough a predetermined number of. degrees rotation and then the studbolt actuates the knock-off lever 97 to allow the carriage to bereturned to its starting position by action of the carriage returnspring 33.

Since the wheel 64 is rotatably mounted on the shaft 69 and is connectedto the gear 71 by the pawl 72, it will be returned to its initialposition prior to rotation by a torsion or clock spring 105 (Fig. 7)attached on one end to a pin 106 carried by the wheel and on its otherend to the shaft 69. A pin, Fig. 4, 107 fixed to the plate 70 limits thereturn rotation of the wheel 64. Hence, the soft rubber rollers 67 arealways driven the same amount each time.

While there have been shown and described and pointed out thefundamental novel features of the invention as applied to a preferredembodiment, it will be understood that various omissions andsubstitutions and changes in the form and details of the deviceillustrated and in its operation may be made by those skilled in theart, without departing from the spirit of the invention. It is theinten- '7 tion, therefore, to be limited only .as. indicatedbythe scopeof the following claims.

What is claimed is: 1. In an apparatus for cutting and coiling slitpaper webs comprising a pair of rollers having parallel taxes located atdifferent levels, rotatable in opposite directions and disposed to forma bite, one of the rollers consisting of a plurality of identicallyshaped reel cores placed side by side, thereby providing separate coresfor slit paper webs to be wound on each core, the other roller beingunitary in construction, a pair of longitudinally spaced parallel racksextending rearwardly from a point proximate to the bite, the racks beingfixed with respect to the roller of unitary construction, a carriagemovable on said racks toward and away from said rollers, the length ofcarriage travel being of a distance so that the slit webs of paper to becut which pass between the rollers, partially around the reel cores andover the carriage will be severed along a transverse axis and the cutedge remaining will be presented to the bite at the end of the carriagetravel toward the rollers, a cutting device mounted on said carriage ina position to cut the slit webs along a transverse axis and to lie verynear the bite point when the carriage reaches the end of its traveltoward the rollers, a means for holding the transversely cut websofpaper against the periphery of the reel cores when the websare presentedto the bite, said holding means being capable of driving said webs intothe bite and means for causing said holding means to drive said webs ofpaper into the bite.

2. In an apparatus for cutting and coiling slit paper webs comprising apair of rollers having parallel axes located at different levels,rotatable in oppositedirections anddisposed to form a bite, one of therollers being composed of a plurality of collocating sections, therebyproviding separate cores for slit individual paper webs wound on eachsection, the other roller being unitary in construction, a pair oflongitudinally spaced parallel racks extending rearwardly from a pointproximate to the bite, the racks being fixed with respect to the rollersof unitary construction, a carriage movable on said racks toward andaway from said rollers, the length of carriage travel limited in theforward direction by said rollers and in the rearward direction by astop position so that the slit webs of paper which pass between therollers partially around the col-locating sections and over the carriagewill be severed along a transverse axis to become separate webs and thecut edge remaining will be presented to the bite at the end of thecarriage travel toward the rollers, a means for cutting the slit Websalong a transverse axis to become separate webs mounted on said carriagein a position so that it will lie very near the bite when the carriagereaches the end of its travel toward the rollers, a means carried bysaid carriage for holding the slit webs against the periphery of thecollocating sections when the webs are presented to the bite, saidholding means being capable of driving said webs into the bite, and ameans operable for driving said holding means.

3. An apparatus for cutting and coiling slit paper webs comprising apair of cooperating rollers rotatable in opposite directions anddisposed to form a bite, one of the rollers being composed of twocollocating sections, thereby providing separate cores for slit paperwebs to be wound on each section, the other roller being unitary inconstruction, a pair of longitudinally spaced parallel racks extendingrearwardly from a point proximate to the bite, the racks being fixedwith respect to the roller of unitary construction, a carriage movableon said racks toward and away from said rollers, the length of carriagetravel limited in the forward direction by a stop positioned so that theslit webs of paper which pass between the rollers partially around thecollocating sections. and over the ca r g ll be se ered alon atransverse to becomev separate. webs'and the cutv bite poi virwhen thecarriage reaches the end of its travel toward the-rollers, a shaftparallel to said rollers and journaled in said carriage carryingaresilient roller disposed to hold the slit webs against the peripheryof the collocating sections when the webs are presented to the bite, theshaft, adapted to be driven, drives the resilient roller, therebydriving said webs into the bite, and a means operable for driving saidshaft.

4. In an apparatus for cutting and coiling slit paper webs comprising apair of rollers having parallel axes, disposed to form a bite androtatable in opposite directions, one of the rollers consisting of aplurality of identically shaped reel cores placed side by side, theother roller being unitary in construction, a pair of longitudinallyspaced parallel racks extending rearwardly from a point proximate to thebite, the racks being fixed with respect to the roller of unitaryconstruction, a cutting means movable on said racks toward and away fromsaid rollers, the length of travel being of a distance so that the slitpaper webs passing between the rollers partially around the reel coresand over the cutting means will be severed along a transverse axis andthe cut edge remaining will be presented to the bite at the end of thetravel of the cutting means toward the rollers, a means for holding thetransversely cut paper webs against the periphery of the reel cores whenthe webs are presented to the bite, said holding means being capable ofdriving ,said webs into the bite and means for causing said holdingmeans to drive the webs into the bite.

5. An apparatus for cutting and coiling slit webs of paper comprising apair of cooperating rollers rotatable in opposite directions anddisposed to form a bite, one of the rollers being composed of twocollocating sections, thereby providing separate cores for slit paperwebs to be wound on each section, the other roller being unitary inconstruction, a pair of longitudinally spaced parallel racks extendingrearwardly from a point proximate to the bite, the racks being fixedwith respect to the roller of unitary construction, a carriage movableon said racks toward and away from said rollers, the length of carriagetravel limited in the forward direction by a stop positioned so that theslit webs of paper which pass between the rollers partially around thecollocating sections and over the carriage will be severed along atransverse axis to become separate webs and the cut edge remaining willbe presented to the bite at the end of the carriage travel toward therollers, a cutting device mounted on said carriage in a position to cutthe webs along a transverse axis and to lie very near the bite pointwhen the carriage reaches the end of its travel toward the rollers, ashaft parallel to said rollers and journaled in said carriage carryingresilient rollers spaced from each other along the shaft centrallyopposite the collocating sections and disposed to hold the slit websagainst the periphery of the collocating sections when the webs arepresented to the bite, the shaft adapted to be driven frictionallydrives the resilient rollers, thereby driving said webs into the bite,and a means operable for driving the said shaft.

6. In an apparatus for cutting and coiling a web of paper comprising apair of rollers having parallel axes located at different levels,rotatable in opposite directions and disposed to form a bite, one of therollers consisting of a plurality of identically shaped collocating reelcores, the other being unitary in construction, a pair of longitudinallyspaced parallel racks extending rearwardly from a point proximate to thebite, the racks being fixed with respect to the roller of unitaryconstruction, a carriage movably supported on said racks toward and awayfrom said rollers, the length of. cairiage travel being of the distanceso that the web of paper to be cut which passes between the rollerspartially around the reel cores and over the carriage will be severedalong a transverse axis and the cut edge remaining will be presented tothe bite at the end of the carriage travel toward the rollers, a cuttingmeans having a plurality of upwardly curved V-shaped teeth mounted onsaid carriage in a position to cut the web along a transverse axis andto lie very near the bite point when the carriage reaches the end of itstravel toward the rollers, a rotatable holding means for holding thetransversely cut web of paper againstthe periphery of the reel coreswhen the web is presented to the bite, said holding means attached tosaid carriage being capable of driving said web into the bite, .a meansoperable for driving said holding means, a latch pivotally mounted toone of said racks for holding the carriage in a fixed position when itreaches the end of its travel toward the roller, a means operable forunlatching the carriage from its latched position, and a means forreturning the carriage to its position away from the rollers.

7. In an apparatus for cutting and coiling a web of paper comprising apair of rollers having parallel axes located at different levels,rotatable in opposite directions and disposed to form a bite, a pair oflongitudinally spaced parallel racks extending rearwardly from a pointproximate to the bite, the racks being fixed with respect to one of saidrollers, a cutting means movable on said racks toward and away from saidrollers, the length of travel being of the distance so that the web ofpaper passing between the rollers partially around one of the rollers onover the cutting means will be severed along a transverse axis and thecut edge remaining will be presented to the bite at the end of thetravel of the cutting means toward the rollers, a means carried by saidcutting means for limiting movement of the cutting means toward therollers by one of the rollers, a stop means carried by one of said racksfor limiting movement of the cutting means away from said rollers, ameans for constantly urging the cutting means away from said rollers,thereby normally holding said cutting means against the stop means, alatch means pivotally mounted on said cutting means and disposed toengage said racks to hold the cutting means in a fixed position when thecutting means has reached the end of its travel toward the rollers, ameans carried with said cutting means for holding said web of paperagainst the periphery-of one of said rollers when the web is presentedto the bite, said holding means being capable of driving the web intothe bite, a means operably carried by said cutting means for drivingsaid holding means, said driving means receiving its driving power fromone of said rollers and transmitting the power to the holding means todrive the web into the bite, a means operable for disengaging the latchmeans from said racks, and a means carried by said driving means foractuating the means to disengage the latch means from said racks afterthe web has been driven into the bite.

8. In an apparatus for cutting and coiling paper comprising a pair ofrollers having parallel axes located at difierent levels, rotatable inopposite directions and disposed to form a bite, one of the rollersbeing composed of two collocating sections, thereby providing separatecores for slit paper webs to be wound on each section, the other rollerbeing unitary in construction, a pair of longitudinally spaced parallelracks extending rearwardly from a point proximate to the bite, the racksbeing fixed with respect to the roller of unitary construction, acarriage movable on said racks toward and away from said rollers, thelength of carriage travel being of a distance so that the slit paperwebs passing between the rollers partially around the collocatingsections and over the carriage will be severed along a transverse axisand the cut edge remaining will be presented to the bite at the end oftravel of the carriage toward the rollers, a suitable means carried bysaid carriage for limiting movement of the carriage toward the rollersby the roller of unitary construction, a stop means mounted on one ofsaid racks for limiting movement of the carriage away from the rollers,a means for constantly urging the carriage away from said rollersthereby normally holding the carriage against the stop means, a cuttingmeans mounted on said carriage in a position to cut the webs along atransverse axis and to be very near the bite point when the carriagereaches the end of its travel toward the rollers, a latch meanspivotally mounted on said carriage and disposed to engage one of saidracks to hold the carriage in a fixed position when the carriage hasreached the end of its travel toward the rollers, a shaft parallel tosaid rollers journaled in said carriage and carrying resilient rollersspaced from each other along said shaft centrally opposite thecollocating sections and disposed to hold the slit webs against theperiphery of the collocating sections when the webs are presented to thebite, the shaft adapted to be driven drives the resilient rollers,thereby driving said webs into the bite, a means operable or drivingsaid parallel shaft through a predetermined number of degrees rotationafter the carriage has reached the end of its travel toward the rollers,a means pivotally mounted on one of the racks operable for disengagingthe latch means from the rack and a means carried by said driving meansfor actuating the means for disengaging the latch means from the rackafter the webs have been driven into the bite.

9. In an apparatus for cutting and coiling slit paper webs comprising apair of rollers having parallel axes located at different levels,rotatable in opposite directions and disposed to form a bite, one of therollers being composed of a plurality of collocating sections, therebyproviding separate cores for slit paper webs to be wound on eachsection, the other roller being unitary in construction, a pair oflongitudinally spaced externally supported parallel racks extendingrearwardly from a point proximate to the bite, the racks being fixedwith respect to the roller of unitary construction, a carriage supportedby said racks and movable thereon toward and away from said rollers, thelength of carriage travel being of a distance so that the slit paperwebs passing between ,the rollers partially around the collocatingsections and over the carriage will be severed along a transverse axisand the cut edge remaining will be presented to the bite at the end oftravel of the carriage unit toward the rollers,

a rotatable means carried by said carriage for limiting movement of thecarriage toward the rollers by the roller of unitary construction, astop means carried by one of said racks. for limiting movement of thecarriage away from the rollers, a means for constantly urging thecarriage away from said rollers, thereby normally holding the carriageagainst the stop means, a cutting means shaft centrally opposite thecollocating sections and ad justably disposed to hold the slit websagainst the periphery of the collocating sections when the webs arepresented to the bite, the shaft adapted to be overdriven, drives theresilient rollers in a manner that each slit web will be tautly driveninto the bite, a means operable for driving said parallel shaft througha predetermined number of degrees rotation after the carriage hasreached the end of its travel toward the rollers, a means operablepivotally mounted on one of the racks for disengaging the latch meansfrom the rack, and a means carried by said driving means for actuatingthe means to disengage the latch means from the rack after the webs havebeen driven into the bite.

10. In an apparatus for cutting and coiling a web of paper comprising apair of rollers having parallel axes located at different levels,rotatable in opposite directions and disposed to form a bite, a pair oflongitudinally spaced parallel externally supported racks extendingrearwardly from a point proximate to the bite, the racks being fixedwith respect to one of said rollers, a carriage supported by said racksand movable thereon toward and away from said rollers, the movement ofthe carriage being of a distance so that the web of paper passingbetween the rollers partially around one of the rollers and on over thecarriage will be severed along a transverse axis and the cut edgeremaining will be presented to the bite when the carriage terminates itstravel toward the rollers, a means carried by said carriage for limitingmovement of the carriage toward the rollers by one of the rollers, astop means mounted one one of said racks for limiting movement of thecarriage away from the rollers, a means for constantly urging thecarriage away from said rollers, thereby normally holding the carriageagainst the stop means, a cutting means mounted on said carriage in aposition to cut the web along a transverse axis and to lie very near thebite point when the carriage reaches the end of its travel toward therollers, a latch means pivotally mounted on said carriage and disposedto engage one of said racks to hold the carriage in a fixed positionwhen the carriage has reached the end of its travel toward the rollers,a shaft parallel to said rollers journaled in said carriage and carryinga resilient roller disposed to hold said web of paper against theperiphery of one of said rollers when the web is presented to the bite,a means for driving said parallel shaft through a predetermined numberof degrees rotation after the carriage has reached the end of its traveltoward-the rollers, a means operable pivotally mounted on one of theracks for disengaging the latch means from the rack and a means carriedby said driving means for actuating the means to disengage the latchmeans from the rack after the webs have been driven into the bite.

11. In an apparatus for cutting and coiling slit paper webs comprising apair of rollers having parallel axes located at different levels,rotatable in opposite directions and disposed to form a bite, one of therollers being composed of a plurality of collocating sections, therebyproviding separate cores for slit paper webs to be wound on eachsection, the other roller being unitary in construction, a pair oflongitudinally spaced parallel racks extending rearwardly from a pointproximate to the bite, the racks being fixed with respect to the rollerof unitary construction, one of said racks being provided with ashoulder portion, a carriage movable on said racks toward and away fromsaid rollers, the length of carriage travel being of a distance so thatthe slit webs passing between the rollers partially around thecollocating sections and over the carriage will be severed along, atransverse axis and the cut edge remaining will be presented to the biteat the end of travel of the carriage toward the rollers, a suitablemeans carried by said carriage for limiting movement of the carriagetoward the rollers by the roller of unitary construction, a stop meansmounted on one of said racks for limiting movement of the carriage awayfrom said rollers, a means for constantly urging the carriage away fromsaid rollers, thereby normally holding the carriage against said stopmeans, a cutting means mounted on said carriage in a position to cut thewebs along a transverse axis and to be very near the bite point when thecarriage reaches the end of its travel toward the rollers, a latch meanspivotally mounted on said carriage and disposed to engage theshoulderportion of one of said racks to hold the carriage in a fixedposition when the carriage has reached the end of its travel toward therollers, a shaft parallel to said rollers journaled in said carriage andcarrying resilient rollers spaced from each other along said shaftcentrally" opposite the collocating sections and disposed to hold theslit webs against the periphery of the collocating sections when thewebs are presented to the bite, the shaft adapted to 12. In an apparatusfor cutting and coiling slit paperwebs comprising a pair of rollershaving parallel axes located at different levels, rotatable in oppositedirections and disposed to form a bite, one of the rollers beingcomposed of a plurality of collocating sections, thereby providingseparate cores for slit paper webs to be wound on each section, theother roller being unitary in con struction, a pair of longitudinallyspaced parallel externally supported racks extending rearwardly from apoint proximate to the bite, the racks being fixed with respect to theroller of unitary construction, one of said racks having a shoulderportion provided therein, a first rotatable shaft parallel to saidrollers and fixedly carrying a pinion gear on each end disposed toengage said racks, a carriage rotatably supporting said parallel shaftso as to be movable on said racks toward and away from said rollers, thelength of carriage travel being of a distance so that the slit paperwebs passing between the rollers, partially around the collocatingsections and over the carriage will be severed along a transverse axisand the cut edge remaining will be presented to the bite at the end oftravel of the carriage toward the rollers, a means carried by saidcarriage for maintaining said pinion gears in engagement with said racksand thereby supporting said carriage on said racks, a means carried bysaid carriage for limiting movement of the carriage toward the rollersby the roller of unitary construction, a stop means mounted on one ofsaid racks for limiting movement of the carriage away from said rollers,a means for constantly urging'the carriage away from said rollers,thereby normally holding the carriage against the stop means, a cuttingmeans having a plurality of upwardly curved V-shaped teeth mounted onsaid carriage in a position to cut the web along a transverse axis andto lie very near the bite point when the carriage reaches the end of itstravel toward the rollers, a retractible guard positioned to normallycover said cutting means and provided with a plurality of slots, a meansoperable for retracting said guard to expose said cutting means as thecarriage is moved toward the rollers, a means operable for retainingsaid guard to cover said cutting means as the carriage is moved awayfrom said rollers, a plurality of guide pins fixed to said carriage andlocated within the slots of said guard to guide the movement thereof, alatch means pivotally mounted on said carriage and disposed to engagesaid shoulder portion provided in one of said racks,

a second rotatable shaft parallel to said rollers journaled in saidcarriage and rotatably carrying resilient rollers spaced from each otheralong said shaft centrally opposite the collocating sections anddisposed to hold the slit webs'against the periphery of the collocatingsections when the Webs are presented to the bite, the shaft adapted tobe'driven drives the resilient rollers, thereby driving said Webs intothe bite, a means operable for driving said second parallel shaftthrough a predetermined number of degrees rotation after the carriagehas reached the end of its travel toward the rollers, a means operablepivotally mounted on one of said racks for disengaging the latch meansfrom the shoulder portion provided in said rack, and a means carried bysaid driving means for actuating the means for disengaging the latchmeans from said shoulder portion after the webs have been driven intothe bite.

13. In apparatus for cutting and coiling of a web of paper comprising: apair of rollers having parallel axes located at different levels,disposed to form a bite and rotatable in opposite directions, a cuttingmeans movable toward and away from said rollers, the length of travel ofsaid cutting means being of a distance so that the web of paper passingbetween the rollers and partially around one of the rollers and over thecutting means will be severed along a transverse axis and the cut edgeremaining will be presented to the bite when the cutting meansterminates its travel toward the rollers, means for holding thetransversely cut web of paper against the periphery of one of saidrollers when the web is presented to the bite, and means for overdrivingsaid web so that any slack occurring will be taken up as the Web isdriven into the bite.

14. In an apparatus for cutting and coiling a web of paper, a pair ofrollers having parallel axes located at difierent levels disposed toform a bite and rotatable in opposite directions; a cutting meansmovable toward and away from said rollers, the length of travel of saidcutting means being of a distance so that the web of paper passingbetween the rollers and partially around one of the rollers and over thecutting means will be severed along a transverse axis and the cut edgeremaining will be presented to the bite as the cutting means terminatesits travel toward the rollers; retractable holding means for holding theend of the transversely cut web of paper against the periphery of one ofsaid rollers when the web is presented to the bite, said holding meansbeing capable of driving said web into the bite; means for actuatingsaid holding means to drive said web into the bite; and means forretracting said retractable holding means upon the same driving said webinto the bite.

15. In an apparatus for cutting and coiling a web of paper as in claim14 wherein said means for actuating said retractable holding means isdriven by one roller of said pair of rollers.

References Cited in the file of this patent UNITED STATES PATENTS999,352 Waring Aug. 1, 1911 2,361,264 Christrnan Oct. 24, 1944 2,481,162Seely Sept. 6, 1949 2,586,833 Kohler et al. Feb. 26, 1952 2,787,427Marczincsin Apr. 2, 1957

